RX400h · Service Manual BODY

Front Passenger Side Power Window Motor Circuit

Circuit diagnosis

DESCRIPTION

This circuit transmits signals from the multiplex network switch to power window regulator motor.

WIRING DIAGRAM

B111211E14

INSPECTION PROCEDURE


1. INSPECT POWER WINDOW REGULATOR MOTOR

  1. B067305E01
    Remove the power window motor.

  1. Apply battery voltage to the motor connector according to the table below.

    NOTICE:
    Do not apply battery to any terminals except terminals 1 and 2.

    Standard:
    Measurement Condition
    Specified Condition
    Battery positive (+) → Terminal 1 (D)
    Battery negative (-) → Terminal 2 (U)
    Motor gear rotates counterclockwise
    Battery positive (+) → Terminal 2 (U)
    Battery negative (-) → Terminal 1 (D)
    Motor gear rotates clockwise



NG
REPLACE POWER WINDOW REGULATOR MOTOR
OK


2. CHECK WIRE HARNESS (WINDOW REGULATOR MOTOR - MULTIPLEX NETWORK SWITCH)

  1. B052056E09
    Disconnect the P15 (P16) and P20 (P21) connectors.

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    RHD Models:
    Tester Connection
    Condition
    Specified Condition
    P15-1 (DN) - P20-1 (D)
    Always
    Below 1 Ω
    P15-6 (UP) - P20-2 (U)
    Always
    Below 1 Ω
    P15-1 (DN) - Body ground
    Always
    10 kΩ or higher
    P15-6 (UP) - Body ground
    Always
    10 kΩ or higher
    LHD Models:
    Tester Connection
    Condition
    Specified Condition
    P16-1 (DN) - P21-1 (D)
    Always
    Below 1 Ω
    P16-6 (UP) - P21-2 (U)
    Always
    Below 1 Ω
    P16-1 (DN) - Body ground
    Always
    10 kΩ or higher
    P16-6 (UP) - Body ground
    Always
    10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE


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